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Anni [7]
3 years ago
15

Qu 4.

Chemistry
1 answer:
Anna11 [10]3 years ago
3 0

Answer:

It's the second one down.

Explanation:

Gold

Mass 197

Number of Protons: 79

Number of Neutrons: 197 - 79 = 118

Number of electrons: = number of protons = 97

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(b) What is the pOH of 1.35x10⁻³ M HCl? Is the solution neutral, acidic, or basic?
nika2105 [10]

The pOH scale is similar to the pH scale in that a pOH of 7 is indicative of a neutral solution. A basic solution has a pOH less than 7, while an acidic solution has a pOH of greater than 7

<h3>What is pOH scale?</h3>

Based on the relative concentration of hydrogen and hydroxyl ions, the pH and pOH scales are used primarily in chemistry, biology, and soil science to describe and measure the acidity and basicity of neutral, acidic, and basic solutions in water.

The terms pH and pOH scale are frequently used and crucial for determining the chemical, biological, and soil health by converting the values of hydrogen or hydroxyl ion concentrations or by utilizing pH paper and meters.

The pH scale or chart, which measures the concentration of hydrogen and hydroxyl ions in acidic and alkaline solutions, was initially developed by Sorensen.

To learn more about pOH scale from the given link:

brainly.com/question/16631843

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5 0
2 years ago
If the electronnegavity difference between elements A and X is 0.8, the bond in AX will most likely be what?
siniylev [52]

Answer:

Polar covalent bond

Explanation:

When the electronegativity difference between two elements A and X is 0.8, the bond AX formed will most likely be a polar covalent bond.

A polar covalent bond is one whose electronegativity difference is between 0.5 and 2.1.

In such a bond type, we have heteronuclear species with one of the species having a higher electronegativity value.

  • When electronegativity difference is less than 0.5, a non-polar covalent bond forms.
  • If the value is greater than 2.1, an ionic bond will form.
8 0
3 years ago
Explain how carbon’s bonding ability makes it unique.
STatiana [176]

\huge\fcolorbox{red}{pink}{Answer ♥}

The carbon atom is unique among elements in its tendency to form extensive networks of covalent bonds not only with other elements but also with itself. ... Moreover, of all the elements in the second row, carbon has the maximum number of outer shell electrons (four) capable of forming covalent bonds.

Hope it helps uh ✌️✌️✌️

Gud mrng

7 0
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Do you believe that in 2020 every single American, regardless of race, sex, or income level, has an equal opportunity to achieve
garri49 [273]

Answer:

Tbh i rlly dont think that many will.  Most may succeed  in doing so. But i mean come on its 2020 anything can happen.

Explanation:

8 0
3 years ago
Read 2 more answers
Ok another chemistry question! This is another question that I can)t solve
steposvetlana [31]

Hey there!

NaHCO₃

Notice that there is no subscript under Na.

That means there is one atom of Na for each molecule of NaHCO₃.

Hope this helps!

5 0
4 years ago
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